Calling ms graph API using browserless console python program

Question

I am trying to hit microsoft to do list api using python program.

Api : https://graph.microsoft.com/beta/me/todo/lists , which resulted in error : Access is denied due to invalid credentials. But when I tried the api : https://graph.microsoft.com/v1.0/users , I am getting the results properly. The documentation of the api ( https://docs.microsoft.com/en-us/graph/api/resources/todo-overview?view=graph-rest-beta ) says "Currently, the API supports only permissions delegated by the signed-in user". Currently I am trying to get auth code and then auth token and then hitting the API. To act as signed in user, what method should I follow in python? Please note I am not using a web frame work. When I tried using flask and then hitting the API , it works. Need to know how a browserless console python application can serve the purpose.

Thank youin advance for the help

Answer 1

You are getting an App only token using a client credential flow and it doesn't ask for user credentials. Please check these Authentication flows and according to your requirement you can choose one of these and implement it. In other ways you can test your HTTP call in Graph Explorer by adding permissions there itself. Your call works here because you will login as user.